patch for cgen generated decoders

[Dave Brolley]

Approved and committed.

matthew green wrote:

>    >
>    > hi folks.
>    >
>    > i need this patch for an architecture where the standard instruction
>    > bitsize is 16 bits, yet there exists a 48-bit instruction (which
>    > causes CGEN_INT_INSN_P to be false).  the problem i was seeing is
>    > that for the 32-bit instruction my ifields were not being extracted
>    > correctly, because only 16 bits were present in the "insn_value".
>    > the patch below enables the code previously only available for the
>    > CGEN_INT_INSN_P==1 case, but ensures that 32-bit instructions are
>    > passed in their entirity in all cases.
>    >
>    > (actually, this code uses "unsigned long" to hold this value, where
>    > it should probably use a "CGEN_INSN_INT".  i'm not sure exactly if
>    > it will work correctly on a LP64 host...)
>    >
>    > i've tested this change with the fr30 & m32r ports and it does not
>    > affect their operation (fr30 is the only other port that sets
>    > CGEN_INT_INSN_P to be false).
>    >
>    > 2000-11-05  matthew green  <mrg@redhat.com>
>    >
>    >         * cgen-dis.in (print_insn): Load a full CGEN_INSN_INT in the
>    >         !CGEN_INT_INSN_P case as well.